From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: 4.13 (and probably all recent) kernels refuse to boot on one Nokia N950, work or another Date: Thu, 26 Oct 2017 09:27:59 +0200 Message-ID: <20171026072759.GC20634@amd> References: <20171025203459.GA22035@amd> <3dbb966f-c279-2c57-d3c2-98ca7c04accd@gmail.com> <20171026070815.GA20634@amd> <20171026072113.z5bqer7os62ckf3z@pali> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="B4IIlcmfBL/1gGOG" Return-path: Content-Disposition: inline In-Reply-To: <20171026072113.z5bqer7os62ckf3z@pali> Sender: linux-kernel-owner@vger.kernel.org To: Pali =?iso-8859-1?Q?Roh=E1r?= Cc: Filip =?utf-8?Q?Matijevi=C4=87?= , sre@kernel.org, kernel list , linux-arm-kernel , linux-omap@vger.kernel.org, tony@atomide.com, khilman@kernel.org, aaro.koskinen@iki.fi, ivo.g.dimitrov.75@gmail.com, patrikbachan@gmail.com, serge@hallyn.com, abcloriens@gmail.com, clayton@craftyguy.net, martijn@brixit.nl, sakari.ailus@linux.intel.com List-Id: linux-omap@vger.kernel.org --B4IIlcmfBL/1gGOG Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! On Thu 2017-10-26 09:21:13, Pali Roh=C3=A1r wrote: > On Thursday 26 October 2017 09:08:15 Pavel Machek wrote: > > On Thu 2017-10-26 08:25:02, Filip Matijevi=C4=87 wrote: > > > Last time I couldn't get output on serial I used CONFIG_DEBUG_LL, > > > CONFIG_DEBUG_OMAP3UART3, CONFIG_EARLY_PRINTK... and ignore_loglevel > > > earlyprintk kernel params to get output early enough - I guess you > > > already tried that. > >=20 > > I realized I'm not getting output from the decompessor (even on "S" > > machine), and enabled that. >=20 > That is because you have not enabled those EARLY PRINK or DEBUG LL. > Similar thing is needed for N900 and IIRC in some of my linux-n900 > branches I have config for it. Plus it needs patching some arch/arm > source files to make it working. Do you have a patch? That would be very useful. Seems like debugging in uncompressor was broken some time ago: config DEBUG_UNCOMPRESS bool depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART &&=20 (!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \!DEBUG_BRCMSTB_UART =20 > > But I'm _still_ not getting any output on decompressor... early > > printing works ok on "S" but not on "P". >=20 > I guess there can be either problem with memory mapping and RAM size or > with OMAP HS mode? RAM size should be ok... how do I check for OMAP HS problems? Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --B4IIlcmfBL/1gGOG Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlnxjn8ACgkQMOfwapXb+vLatgCgw143c/ws3OiGJ4Hqefg7QAYg WEIAnjTuZ0E+u6Dx7cl/bp7pOTVarQlk =cFxH -----END PGP SIGNATURE----- --B4IIlcmfBL/1gGOG--